I'm not entirely sure how to word this properly, but on the drivers side of my engine, near the #3 valve cover (or maybe #4), I am missing a bolt. I believe it's on my air intake as when my truck is hot and running, I can feel air rushing out of there, and when I hit the throttle and the turbo spins faster, the air pressure coming out of the hole increases.

Now for my question, if you know which bolt I am talking about, would you know the size of said bolt so I can replace it and get rid of my boost leak, or is this a specialty bolt made specifically for the engine?

 

oops. I spelled bolt wrong in the title. How embarrasing.

 

Of the four bolts there are two lengths.
About all I know is they are metric. Drive your rig down to the bolt store, remove an adjacent bolt the correct length and compare it for a new one.

 

Never did think of that. Thanks.